<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">How does this figure into costs? </div></BLOCKQUOTE>
RTFR ;-)
I haven't checked the 2007 rules yet but engines are costed to a displacement/performance formula AFAIK.
BTW your sig might be slightly deformed.
Tim